new file mode 100644
@@ -0,0 +1,31 @@
+/*
+ * SMSC LAN9118 PHY emulation
+ *
+ * Copyright (c) 2009 CodeSourcery, LLC.
+ * Written by Paul Brook
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#ifndef HW_NET_LAN9118_PHY_H
+#define HW_NET_LAN9118_PHY_H
+
+#include "hw/irq.h"
+
+typedef struct Lan9118PhyState {
+ uint32_t status;
+ uint32_t control;
+ uint32_t advertise;
+ uint32_t ints;
+ uint32_t int_mask;
+ IRQState irq;
+ bool link_down;
+} Lan9118PhyState;
+
+void lan9118_phy_update_link(Lan9118PhyState *s, bool link_down);
+void lan9118_phy_reset(Lan9118PhyState *s);
+uint32_t lan9118_phy_read(Lan9118PhyState *s, int reg);
+void lan9118_phy_write(Lan9118PhyState *s, int reg, uint32_t val);
+
+#endif
@@ -16,6 +16,7 @@
#include "net/net.h"
#include "net/eth.h"
#include "hw/irq.h"
+#include "hw/net/lan9118_phy.h"
#include "hw/net/lan9118.h"
#include "hw/ptimer.h"
#include "hw/qdev-properties.h"
@@ -139,14 +140,6 @@ do { printf("lan9118: " fmt , ## __VA_ARGS__); } while (0)
#define MAC_CR_RXEN 0x00000004
#define MAC_CR_RESERVED 0x7f404213
-#define PHY_INT_ENERGYON 0x80
-#define PHY_INT_AUTONEG_COMPLETE 0x40
-#define PHY_INT_FAULT 0x20
-#define PHY_INT_DOWN 0x10
-#define PHY_INT_AUTONEG_LP 0x08
-#define PHY_INT_PARFAULT 0x04
-#define PHY_INT_AUTONEG_PAGE 0x02
-
#define GPT_TIMER_EN 0x20000000
/*
@@ -228,11 +221,7 @@ struct lan9118_state {
uint32_t mac_mii_data;
uint32_t mac_flow;
- uint32_t phy_status;
- uint32_t phy_control;
- uint32_t phy_advertise;
- uint32_t phy_int;
- uint32_t phy_int_mask;
+ Lan9118PhyState mii;
int32_t eeprom_writable;
uint8_t eeprom[128];
@@ -301,11 +290,11 @@ static const VMStateDescription vmstate_lan9118 = {
VMSTATE_UINT32(mac_mii_acc, lan9118_state),
VMSTATE_UINT32(mac_mii_data, lan9118_state),
VMSTATE_UINT32(mac_flow, lan9118_state),
- VMSTATE_UINT32(phy_status, lan9118_state),
- VMSTATE_UINT32(phy_control, lan9118_state),
- VMSTATE_UINT32(phy_advertise, lan9118_state),
- VMSTATE_UINT32(phy_int, lan9118_state),
- VMSTATE_UINT32(phy_int_mask, lan9118_state),
+ VMSTATE_UINT32(mii.status, lan9118_state),
+ VMSTATE_UINT32(mii.control, lan9118_state),
+ VMSTATE_UINT32(mii.advertise, lan9118_state),
+ VMSTATE_UINT32(mii.ints, lan9118_state),
+ VMSTATE_UINT32(mii.int_mask, lan9118_state),
VMSTATE_INT32(eeprom_writable, lan9118_state),
VMSTATE_UINT8_ARRAY(eeprom, lan9118_state, 128),
VMSTATE_INT32(tx_fifo_size, lan9118_state),
@@ -385,9 +374,11 @@ static void lan9118_reload_eeprom(lan9118_state *s)
lan9118_mac_changed(s);
}
-static void phy_update_irq(lan9118_state *s)
+static void lan9118_update_irq(void *opaque, int n, int level)
{
- if (s->phy_int & s->phy_int_mask) {
+ lan9118_state *s = opaque;
+
+ if (level) {
s->int_sts |= PHY_INT;
} else {
s->int_sts &= ~PHY_INT;
@@ -395,33 +386,10 @@ static void phy_update_irq(lan9118_state *s)
lan9118_update(s);
}
-static void phy_update_link(lan9118_state *s)
-{
- /* Autonegotiation status mirrors link status. */
- if (qemu_get_queue(s->nic)->link_down) {
- s->phy_status &= ~0x0024;
- s->phy_int |= PHY_INT_DOWN;
- } else {
- s->phy_status |= 0x0024;
- s->phy_int |= PHY_INT_ENERGYON;
- s->phy_int |= PHY_INT_AUTONEG_COMPLETE;
- }
- phy_update_irq(s);
-}
-
static void lan9118_set_link(NetClientState *nc)
{
- phy_update_link(qemu_get_nic_opaque(nc));
-}
-
-static void phy_reset(lan9118_state *s)
-{
- s->phy_status = 0x7809;
- s->phy_control = 0x3000;
- s->phy_advertise = 0x01e1;
- s->phy_int_mask = 0;
- s->phy_int = 0;
- phy_update_link(s);
+ lan9118_phy_update_link(&LAN9118(qemu_get_nic_opaque(nc))->mii,
+ nc->link_down);
}
static void lan9118_reset(DeviceState *d)
@@ -478,7 +446,7 @@ static void lan9118_reset(DeviceState *d)
s->read_word_n = 0;
s->write_word_n = 0;
- phy_reset(s);
+ lan9118_phy_reset(&s->mii);
s->eeprom_writable = 0;
lan9118_reload_eeprom(s);
@@ -678,7 +646,7 @@ static void do_tx_packet(lan9118_state *s)
uint32_t status;
/* FIXME: Honor TX disable, and allow queueing of packets. */
- if (s->phy_control & 0x4000) {
+ if (s->mii.control & 0x4000) {
/* This assumes the receive routine doesn't touch the VLANClient. */
qemu_receive_packet(qemu_get_queue(s->nic), s->txp->data, s->txp->len);
} else {
@@ -834,68 +802,6 @@ static void tx_fifo_push(lan9118_state *s, uint32_t val)
}
}
-static uint32_t do_phy_read(lan9118_state *s, int reg)
-{
- uint32_t val;
-
- switch (reg) {
- case 0: /* Basic Control */
- return s->phy_control;
- case 1: /* Basic Status */
- return s->phy_status;
- case 2: /* ID1 */
- return 0x0007;
- case 3: /* ID2 */
- return 0xc0d1;
- case 4: /* Auto-neg advertisement */
- return s->phy_advertise;
- case 5: /* Auto-neg Link Partner Ability */
- return 0x0f71;
- case 6: /* Auto-neg Expansion */
- return 1;
- /* TODO 17, 18, 27, 29, 30, 31 */
- case 29: /* Interrupt source. */
- val = s->phy_int;
- s->phy_int = 0;
- phy_update_irq(s);
- return val;
- case 30: /* Interrupt mask */
- return s->phy_int_mask;
- default:
- qemu_log_mask(LOG_GUEST_ERROR,
- "do_phy_read: PHY read reg %d\n", reg);
- return 0;
- }
-}
-
-static void do_phy_write(lan9118_state *s, int reg, uint32_t val)
-{
- switch (reg) {
- case 0: /* Basic Control */
- if (val & 0x8000) {
- phy_reset(s);
- break;
- }
- s->phy_control = val & 0x7980;
- /* Complete autonegotiation immediately. */
- if (val & 0x1000) {
- s->phy_status |= 0x0020;
- }
- break;
- case 4: /* Auto-neg advertisement */
- s->phy_advertise = (val & 0x2d7f) | 0x80;
- break;
- /* TODO 17, 18, 27, 31 */
- case 30: /* Interrupt mask */
- s->phy_int_mask = val & 0xff;
- phy_update_irq(s);
- break;
- default:
- qemu_log_mask(LOG_GUEST_ERROR,
- "do_phy_write: PHY write reg %d = 0x%04x\n", reg, val);
- }
-}
-
static void do_mac_write(lan9118_state *s, int reg, uint32_t val)
{
switch (reg) {
@@ -929,9 +835,9 @@ static void do_mac_write(lan9118_state *s, int reg, uint32_t val)
if (val & 2) {
DPRINTF("PHY write %d = 0x%04x\n",
(val >> 6) & 0x1f, s->mac_mii_data);
- do_phy_write(s, (val >> 6) & 0x1f, s->mac_mii_data);
+ lan9118_phy_write(&s->mii, (val >> 6) & 0x1f, s->mac_mii_data);
} else {
- s->mac_mii_data = do_phy_read(s, (val >> 6) & 0x1f);
+ s->mac_mii_data = lan9118_phy_read(&s->mii, (val >> 6) & 0x1f);
DPRINTF("PHY read %d = 0x%04x\n",
(val >> 6) & 0x1f, s->mac_mii_data);
}
@@ -1126,7 +1032,7 @@ static void lan9118_writel(void *opaque, hwaddr offset,
break;
case CSR_PMT_CTRL:
if (val & 0x400) {
- phy_reset(s);
+ lan9118_phy_reset(&s->mii);
}
s->pmt_ctrl &= ~0x34e;
s->pmt_ctrl |= (val & 0x34e);
@@ -1383,6 +1289,9 @@ static void lan9118_realize(DeviceState *dev, Error **errp)
object_get_typename(OBJECT(dev)), dev->id,
&dev->mem_reentrancy_guard, s);
qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
+
+ qemu_init_irq(&s->mii.irq, lan9118_update_irq, s, 0);
+
s->eeprom[0] = 0xa5;
for (i = 0; i < 6; i++) {
s->eeprom[i + 1] = s->conf.macaddr.a[i];
new file mode 100644
@@ -0,0 +1,117 @@
+/*
+ * SMSC LAN9118 PHY emulation
+ *
+ * Copyright (c) 2009 CodeSourcery, LLC.
+ * Written by Paul Brook
+ *
+ * This code is licensed under the GNU GPL v2
+ *
+ * Contributions after 2012-01-13 are licensed under the terms of the
+ * GNU GPL, version 2 or (at your option) any later version.
+ */
+
+#include "qemu/osdep.h"
+#include "hw/net/lan9118_phy.h"
+#include "hw/irq.h"
+#include "qemu/log.h"
+
+#define PHY_INT_ENERGYON (1 << 7)
+#define PHY_INT_AUTONEG_COMPLETE (1 << 6)
+#define PHY_INT_FAULT (1 << 5)
+#define PHY_INT_DOWN (1 << 4)
+#define PHY_INT_AUTONEG_LP (1 << 3)
+#define PHY_INT_PARFAULT (1 << 2)
+#define PHY_INT_AUTONEG_PAGE (1 << 1)
+
+static void lan9118_phy_update_irq(Lan9118PhyState *s)
+{
+ qemu_set_irq(&s->irq, !!(s->ints & s->int_mask));
+}
+
+void lan9118_phy_update_link(Lan9118PhyState *s, bool link_down)
+{
+ s->link_down = link_down;
+
+ /* Autonegotiation status mirrors link status. */
+ if (link_down) {
+ s->status &= ~0x0024;
+ s->ints |= PHY_INT_DOWN;
+ } else {
+ s->status |= 0x0024;
+ s->ints |= PHY_INT_ENERGYON;
+ s->ints |= PHY_INT_AUTONEG_COMPLETE;
+ }
+ lan9118_phy_update_irq(s);
+}
+
+void lan9118_phy_reset(Lan9118PhyState *s)
+{
+ s->status = 0x7809;
+ s->control = 0x3000;
+ s->advertise = 0x01e1;
+ s->int_mask = 0;
+ s->ints = 0;
+ lan9118_phy_update_link(s, s->link_down);
+}
+
+uint32_t lan9118_phy_read(Lan9118PhyState *s, int reg)
+{
+ uint32_t val;
+
+ switch (reg) {
+ case 0: /* Basic Control */
+ return s->control;
+ case 1: /* Basic Status */
+ return s->status;
+ case 2: /* ID1 */
+ return 0x0007;
+ case 3: /* ID2 */
+ return 0xc0d1;
+ case 4: /* Auto-neg advertisement */
+ return s->advertise;
+ case 5: /* Auto-neg Link Partner Ability */
+ return 0x0f71;
+ case 6: /* Auto-neg Expansion */
+ return 1;
+ /* TODO 17, 18, 27, 29, 30, 31 */
+ case 29: /* Interrupt source. */
+ val = s->ints;
+ s->ints = 0;
+ lan9118_phy_update_irq(s);
+ return val;
+ case 30: /* Interrupt mask */
+ return s->int_mask;
+ default:
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "lan9118_phy_read: PHY read reg %d\n", reg);
+ return 0;
+ }
+}
+
+void lan9118_phy_write(Lan9118PhyState *s, int reg, uint32_t val)
+{
+ switch (reg) {
+ case 0: /* Basic Control */
+ if (val & 0x8000) {
+ lan9118_phy_reset(s);
+ break;
+ }
+ s->control = val & 0x7980;
+ /* Complete autonegotiation immediately. */
+ if (val & 0x1000) {
+ s->status |= 0x0020;
+ }
+ break;
+ case 4: /* Auto-neg advertisement */
+ s->advertise = (val & 0x2d7f) | 0x80;
+ break;
+ /* TODO 17, 18, 27, 31 */
+ case 30: /* Interrupt mask */
+ s->int_mask = val & 0xff;
+ lan9118_phy_update_irq(s);
+ break;
+ default:
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "lan9118_phy_write: PHY write reg %d = 0x%04x\n", reg, val);
+ }
+}
@@ -62,8 +62,12 @@ config VMXNET3_PCI
config SMC91C111
bool
+config LAN9118_PHY
+ bool
+
config LAN9118
bool
+ select LAN9118_PHY
select PTIMER
config NE2000_ISA
@@ -19,6 +19,7 @@ system_ss.add(when: 'CONFIG_VMXNET3_PCI', if_true: files('vmxnet3.c'))
system_ss.add(when: 'CONFIG_SMC91C111', if_true: files('smc91c111.c'))
system_ss.add(when: 'CONFIG_LAN9118', if_true: files('lan9118.c'))
+system_ss.add(when: 'CONFIG_LAN9118_PHY', if_true: files('lan9118_phy.c'))
system_ss.add(when: 'CONFIG_NE2000_ISA', if_true: files('ne2000-isa.c'))
system_ss.add(when: 'CONFIG_OPENCORES_ETH', if_true: files('opencores_eth.c'))
system_ss.add(when: 'CONFIG_XGMAC', if_true: files('xgmac.c'))
A very similar implementation of the same device exists in imx_fec. Prepare for a common implementation by extracting the code into its own files. Signed-off-by: Bernhard Beschow <shentey@gmail.com> --- include/hw/net/lan9118_phy.h | 31 ++++++++ hw/net/lan9118.c | 133 ++++++----------------------------- hw/net/lan9118_phy.c | 117 ++++++++++++++++++++++++++++++ hw/net/Kconfig | 4 ++ hw/net/meson.build | 1 + 5 files changed, 174 insertions(+), 112 deletions(-) create mode 100644 include/hw/net/lan9118_phy.h create mode 100644 hw/net/lan9118_phy.c